论文信息 - A 16-element two-dimensional active self-steering array using self-oscillating mixers

A 16-element two-dimensional active self-steering array using self-oscillating mixers

A 16-element two-dimensional (2-D) retrodirective array using self-oscillating mixers (SOMs) is presented. SOMs allow for easier implementation of larger 2-D arrays by eliminating the complex local-oscillator (LO) feed structure. A 4 /spl times/ 4 element retrodirective array using SOMs is demonstrated at an LO frequency of 7.68 GHz. Each element is phased locked at the LO frequency with an accompanying RF frequency isolation of 17.9 dB between adjacent horizontal elements and 22.2 dB between adjacent vertical elements. A -10-dBm external injection-locking signal is applied to reduce the phase noise of the 16-element array to -68.2 dBc/Hz at 10-kHz offset. Retrodirectivity is observed in the /spl phi/=0/spl deg/, /spl phi/=-45/spl deg/, and /spl phi/=-90 plane for scattering angles of /spl theta/=-15/spl deg/, /spl theta/=0/spl deg/, and /spl theta/=+30/spl deg/.

Wayne A. Shiroma | G. S. Shiroma | R. Y. Miyamoto

[2] Tah-Hsiung Chu,et al. A retro-directive antenna array with phase conjugation circuit using subharmonically injection-locked self-oscillating mixers , 2004 .

[3] W. E. Forsyth,et al. A retrodirective antenna array using a spatially fed local oscillator , 2002 .

[4] Tatsuo Itoh,et al. An active integrated retrodirective transponder for remote information retrieval-on-demand , 2001 .

[5] Tatsuo Itoh,et al. Quasi-optical planar arrays with FETs and slots , 1993 .

[6] Tatsuo Itoh,et al. Mode analysis and stabilization of a spatial power combining array with strongly coupled oscillators , 1993 .

[7] Tatsuo Itoh,et al. Retrodirective arrays for wireless communications , 2002 .

[8] M.P. DeLisio,et al. A retrodirective diode grid array using four-wave mixing , 2001, 2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157).

[9] L. Pon,et al. Retrodirective array using the heterodyne technique , 1964 .

[10] G. Gonzalez. Microwave Transistor Amplifiers: Analysis and Design , 1984 .